Stress Analysis Method , special points to be checked and understood by Piping engineers, Civil and Structural Engineers and especially by Stress Analysis Engineers.
For the pipe stress analysis of any piping system, different kinds of loads need to be considered. Let us take a look at different kind of loads that are required to be considered for stress analysis of any piping system.
Hello Friends,
Please find Basics of Pipe stress analysis, this is in continuation to earlier posts (Walk through Piping & pipe Stress). If all read in conjunction, shall give you a very good OVERVIEW of pipe stress analysis.
Next will target individual equipment connected piping stress analysis methodology.
This is in continuation to my previous post (walk through-piping).
Generally, when we talk about Pipe stress analysis basics, we tend to quickly jump to Failure theories, B31.3, Caesar II, Static & Dynamic, offshore /onshore, jacketed piping etc.
Walk through Pipe stress is to ease into piping stress world with its polite introduction to curious techies, without having hold on Forces/moments/displacement equations.
Pipe Stress Analysis Basics will be taken next.
regards
Ashish
For the pipe stress analysis of any piping system, different kinds of loads need to be considered. Let us take a look at different kind of loads that are required to be considered for stress analysis of any piping system.
Hello Friends,
Please find Basics of Pipe stress analysis, this is in continuation to earlier posts (Walk through Piping & pipe Stress). If all read in conjunction, shall give you a very good OVERVIEW of pipe stress analysis.
Next will target individual equipment connected piping stress analysis methodology.
This is in continuation to my previous post (walk through-piping).
Generally, when we talk about Pipe stress analysis basics, we tend to quickly jump to Failure theories, B31.3, Caesar II, Static & Dynamic, offshore /onshore, jacketed piping etc.
Walk through Pipe stress is to ease into piping stress world with its polite introduction to curious techies, without having hold on Forces/moments/displacement equations.
Pipe Stress Analysis Basics will be taken next.
regards
Ashish
This presentation will gave an Basic idea about Pipe stress analysis, why pipe stress analysis need to perform and Having small introduction to CAESAR II Software.
Introduction to Stress Analysis and Piping Vibration AnalysisAndré Fraga
This slide is a short introduction to Piping Stress Analysis and Piping Vibration Analysis. It was made as a resume to introduce new Engineers to this subject.
This presentation will cover pipe support design, 3D modeling, Finite Element Analysis, special stress and thermal cases, along with the unique cases that brought on new pipe support designs. Increase your understanding of the value-added services that are offered by PT&P.
Design by Analysis - A general guideline for pressure vesselAnalyzeForSafety
This presentation file is provided by Mr. Ghanbari and published under permission.
The presentation gives an introduction and general guideline for pressure vessel design by analysis.
The “design by analysis” procedures are intended to guard against eight possible pressure vessel failure modes by performing a detailed stress analysis of the vessel with the sufficient design factors. The failure modes are:
1.excessive elastic deformation, including elastic instability,
2.excessive plastic deformation,
3.brittle fracture,
4.stress rupture/creep deformation (inelastic),
5.plastic instability - incremental collapse,
6.high strain - low cycle fatigue,
7.stress corrosion, and
8.corrosion fatigue
Most of the “design by analysis” procedures that are given in ASME BPVC relate to designs based on “elastic analysis.”
The design-by-analysis requirements are organized based on protection against the failure modes listed below. The component shall be evaluated for each applicable failure mode. If multiple assessment procedures are provided for a failure mode, only one of these procedures must be satisfied to qualify the design of a component.
a)All pressure vessels within the scope of this Division, irrespective of size or pressure, shall be provided with protection against overpressure in accordance with the requirements of this Part.
b)Protection Against Plastic Collapse – these requirements apply to all components where the thickness and configuration of the component is established using design-by-analysis rules.
c)Protection Against Local Failure – these requirements apply to all components where the thickness and configuration of the component is established using design-by-analysis rules. It is not necessary to evaluate the local strain limit criterion if the component design is in accordance with Part 4 (i.e. component wall thickness and weld detail per paragraph 4.2).
d)Protection Against Collapse From Buckling – these requirements apply to all components where the thickness and configuration of the component is established using design-by-analysis rules and the applied loads result in a compressive stress field.
e)Protection Against Failure From Cyclic Loading – these requirements apply to all components where the thickness and configuration of the component is established using design-by-analysis rules and the applied loads are cyclic. In addition, these requirements can also be used to qualify a component for cyclic loading where the thickness and size of the component are established using the design-by-rule requirements of Part 4.
Here's a presentation on piping engineering in PDF format, now available for all. This presentation covers the basics points of piping for our EPC industry. This presentation covers various aspects of piping engineering
This presentation will gave an Basic idea about Pipe stress analysis, why pipe stress analysis need to perform and Having small introduction to CAESAR II Software.
Introduction to Stress Analysis and Piping Vibration AnalysisAndré Fraga
This slide is a short introduction to Piping Stress Analysis and Piping Vibration Analysis. It was made as a resume to introduce new Engineers to this subject.
This presentation will cover pipe support design, 3D modeling, Finite Element Analysis, special stress and thermal cases, along with the unique cases that brought on new pipe support designs. Increase your understanding of the value-added services that are offered by PT&P.
Design by Analysis - A general guideline for pressure vesselAnalyzeForSafety
This presentation file is provided by Mr. Ghanbari and published under permission.
The presentation gives an introduction and general guideline for pressure vessel design by analysis.
The “design by analysis” procedures are intended to guard against eight possible pressure vessel failure modes by performing a detailed stress analysis of the vessel with the sufficient design factors. The failure modes are:
1.excessive elastic deformation, including elastic instability,
2.excessive plastic deformation,
3.brittle fracture,
4.stress rupture/creep deformation (inelastic),
5.plastic instability - incremental collapse,
6.high strain - low cycle fatigue,
7.stress corrosion, and
8.corrosion fatigue
Most of the “design by analysis” procedures that are given in ASME BPVC relate to designs based on “elastic analysis.”
The design-by-analysis requirements are organized based on protection against the failure modes listed below. The component shall be evaluated for each applicable failure mode. If multiple assessment procedures are provided for a failure mode, only one of these procedures must be satisfied to qualify the design of a component.
a)All pressure vessels within the scope of this Division, irrespective of size or pressure, shall be provided with protection against overpressure in accordance with the requirements of this Part.
b)Protection Against Plastic Collapse – these requirements apply to all components where the thickness and configuration of the component is established using design-by-analysis rules.
c)Protection Against Local Failure – these requirements apply to all components where the thickness and configuration of the component is established using design-by-analysis rules. It is not necessary to evaluate the local strain limit criterion if the component design is in accordance with Part 4 (i.e. component wall thickness and weld detail per paragraph 4.2).
d)Protection Against Collapse From Buckling – these requirements apply to all components where the thickness and configuration of the component is established using design-by-analysis rules and the applied loads result in a compressive stress field.
e)Protection Against Failure From Cyclic Loading – these requirements apply to all components where the thickness and configuration of the component is established using design-by-analysis rules and the applied loads are cyclic. In addition, these requirements can also be used to qualify a component for cyclic loading where the thickness and size of the component are established using the design-by-rule requirements of Part 4.
Here's a presentation on piping engineering in PDF format, now available for all. This presentation covers the basics points of piping for our EPC industry. This presentation covers various aspects of piping engineering
When your Southern cross column pipe corrodes out and is leaking like a sieve, think about replacing it with PVC column manufactured and designed by DEPS.
It is the welding process done under the water with the help of two methods : Dry Welding and Wet Welding. The presentation provides basic knowledge on the underwater welding and it's respective techniques.
Design & Stress Analysis of a Cylinder with Closed ends using ANSYSIJERA Editor
The significance of the title of the project comes to front with designing structure of the pressure vessel for static loading and its assessment by ANSYS , is basically a project concerned with design of different pressure vessel elements such as shell, Dish end ,operating manhole ,support leg based on standards and codes ; and evolution of shell and dish end analysed by means of ANSYS .The key feature included in the project is to check the behaviour of pressure vessel in case of fluctuating load . The procedural step includes various aspects such as selecting the material based on American Society of Mechanical Engineers (ASME) codes ,and then designing on the standards procedures with referring standard manuals based on ASME .Further we have included the different manufacturing methods practice by the industries and different aspects of it .
ASTM developed a collection of documents called material specifications for
standardizing materials of large use in the industry.
• Specifications starting with “A” are for steel.
• Specifications starting with “B” are for non-ferrous alloys (bronze, brass,
copper nickel alloys, aluminum alloys and so on).
• Specifications starting with “D” are for plastic material, as PVC.
An ASTM specification specifies the basic chemical composition of material and the
process through which the material is shaped into the final product. Some of the
common material standards are
Piping For Cooling Water Circulation between Cooling Tower and CondenserIJSRD
In thermal power plant, as we know that exhaust steam from turbine goes to heat recovery unit and from there the exhaust stem goes to the condenser to condense. In shell and tube heat exchanger, cooling water as a cooling medium running inside the tubes whereas steam is inside the shell. So to have sufficient amount of cooling water, we require continuous flow of water from the cooling tower. Our main project aim is to provide a piping between condenser and cooling tower. So in this particular project, we will make basic documents such as pfd, p&id, plot plan, equipment layout, piping ga drawing, isometrics, mto, piping specifications, pump specification, calculations, and stress analysis etc.
Literature Review Basics and Understanding Reference Management.pptxDr Ramhari Poudyal
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
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Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
6th International Conference on Machine Learning & Applications (CMLA 2024)ClaraZara1
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
Water billing management system project report.pdfKamal Acharya
Our project entitled “Water Billing Management System” aims is to generate Water bill with all the charges and penalty. Manual system that is employed is extremely laborious and quite inadequate. It only makes the process more difficult and hard.
The aim of our project is to develop a system that is meant to partially computerize the work performed in the Water Board like generating monthly Water bill, record of consuming unit of water, store record of the customer and previous unpaid record.
We used HTML/PHP as front end and MYSQL as back end for developing our project. HTML is primarily a visual design environment. We can create a android application by designing the form and that make up the user interface. Adding android application code to the form and the objects such as buttons and text boxes on them and adding any required support code in additional modular.
MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software. It is a stable ,reliable and the powerful solution with the advanced features and advantages which are as follows: Data Security.MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Understanding Inductive Bias in Machine LearningSUTEJAS
This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
2. • The Most important reason stress analysis is carried out is : SAFETY
• This is achieved by designing a Code Compliant System.
• There are also Financial Saving to be made:
• Correct pipe support spans
• Material sizes and thickness which are correctly specified.
2
General
Ideal
Flowchart
3. 3
Dangers
Good practice engineering, Quality controls, Experienced engineers,
and correct installation should avoid dangerous consequences
High
pressure Flammable
4. 4
Dangers
Buried Pipes : along roads and in civil areas.
HIDDEN DANGERS should be
considered seriously
5. 5
• Design and Analysis should take into account also construction feasibility
• The designer should run different analyses according to specifying steps.
6. 6
Codes
• Loading Codes:
• Seismic Loads: SI-413
• Wind Loads: SI-414
• Traffic and Earth Loads: ASCE-Guidelines for the design of buried steel pipe
& Geotechnical Report
• Piping Codes:
• ASME B31.3
• ASME B31.8
• SI-5664
• NEN 3650
7. 7
Sources for generation of stress in a Piping System:
•Weight
•Internal/External Pressure
•Temperature change
•Occasional Loads due to wind, seismic disturbances, PSV discharge etc.
•Forces due to Vibration.
1.Sustained Stresses are the stresses generated by sustained loads. (e.g. Pressure , Weight). These loads are present
continuously throughout plant life.
2.Resistive force arising out of sustained stresses balance the external forces keeping the system in equilibrium. Exceeding
sustain allowable stress value causes catastrophic failure of the system.
3.As per ASME B 31.3, (clause 302.3.5) “ The sum of the longitudinal stresses, SL, in any component in a piping system,
due to sustained loads such as pressure and weight, shall not exceed the product Sh x W ”. Where, Sh=Basic allowable
stress at maximum metal temperature expected during the displacement cycle and W=weld joint strength reduction factor.
4.Pressure Stresses are taken care of by calculating and selecting proper pipe thickness. The pressure thickness (t) of a
straight pipe can be obtained as per ASME B31.3 from the equation (Clause 304.1.2).
16. 16
Supports Definition
The supports should be in
accordance with actual
structures, and not “in the air”
The supports should be
placed correctly
17. 17
Supports Friction
Coefficient of friction factor depending upon the supporting interface (i.e,
junction between Top of Steel and Bottom of Pipe or Bottom of Shoe/Cradle)
shall be applied at all vertical restraint (+Y or Y supports) locations as
mentioned below.
Carbon Steel to Carbon Steel: 0.3
Polished Stainless Steel to Polished Stainless Steel/Graphite: 0.15
Teflon to Teflon/ Polished Stainless Steel: 0.10
Concrete to Carbon Steel: 0.4
Pipe to Roll Support: 0.01
Teflon to Carbon Steel: 0.2
18. 18
Check the Model
From Piping design to stress analysis, just
check that any design problem will occur.
PIPING Redesign will generate a new
stress analysis process.
19. 19
From Soil Report
Insert Data
Soil Data should be inserted according to soil
report , pipe diameter and pipe depth.
20. 20
ALL Line Numbers should be written
Only on main lines (not for vents)
Insert Data
ALL Supports should be with different
name , check duplicity (line stop should
be the same support name)