Unit 1-stress, strain and deformation of solids
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This document discusses stress and strain in materials due to external forces. It defines stress as the effect of external forces on materials, and strain as the deformation or change in shape of materials under stress. It describes different types of stresses like tensile, compressive, and shear stresses, as well as different types of strains. Hooke's law and Poisson's ratio are explained, which relate stress to strain in materials. The concept of factor of safety is also introduced.
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This document provides an overview of fundamental mechanical engineering concepts including stress, strain, Hooke's law, stress-strain diagrams, and elastic properties of materials. Key points include:
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This document provides an overview of simple stress and strain concepts including:
- Stress is defined as the internal resisting force per unit area acting on a material. It can be expressed as the limit of the distributed force over an infinitesimal area as the area approaches zero.
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This document discusses the properties of elasticity and plasticity in materials. It defines elasticity as the ability of a material to return to its original shape and size after an applied force is removed, while plasticity means a material does not return to its original shape after force removal. Stress and strain are also defined, along with Hooke's law which states stress is proportional to strain within a material's elastic limit. The different types of moduli - Young's, rigidity, and bulk - are explained. Factors that impact a material's elastic properties, like temperature, purity, and crystal structure are outlined. Poisson's ratio and stress-strain diagrams are also introduced.
Mechanical properties 2
The document discusses the mechanical properties of dental materials. It defines mechanical properties as those defined by the laws of mechanics, including forces and their effects on materials. Mechanical properties need to be considered collectively based on the intended application of the material. The success of any dental restoration depends on the mechanical properties of the material used. Key mechanical properties discussed include stress, strain, strength, elastic modulus, resilience, toughness, ductility and hardness. Various testing methods are used to evaluate these properties.
Properties of dental materials by dr brajendra singh tomar
Properties of dental materials by dr brajendra singh tomarRISHIRAJ COLLEGE OF DENTAL SCIENCES AND RESEARCH CENTRE.
Dr. Brajendrasingh Tomar gave a lecture on the properties of dental materials. He discussed that dental materials aim to improve patients' quality of life by preventing disease, relieving pain, and enhancing appearance. Ideal dental materials would be biocompatible, bond permanently to teeth, match the appearance of natural tissues, exhibit similar properties to natural tissues, and promote tissue repair. Dental materials can be classified as preventive, restorative, or auxiliary. Physical properties are based on mechanics and include viscosity, shear stress, and hardness. Mechanical properties deal with forces and energies, and include stress, strain, strength, modulus of elasticity, resilience, and toughness. Common tests evaluate properties likeDeformation of solids (Physical Pharmaceutics)
1. The document discusses different types of deformation that solids undergo when external forces are applied, including elastic deformation, plastic deformation, and breaking.
2. Elastic deformation is reversible and follows Hooke's Law, relating stress to strain linearly. Plastic deformation is irreversible and leads to a permanent change in shape.
3. The document also defines moduli that quantify a material's resistance to different types of deformation, including Young's modulus, shear modulus, and bulk modulus. These properties depend on the material and can be used to characterize its stiffness.
Basics of strength of materials
This document discusses the basics of strength of materials. It defines solid mechanics as the branch of mechanics dealing with the behavior of solid materials under external forces or internal forces caused by temperature changes, phase changes, or other agents. It describes several key mechanical properties of materials including ductility, hardness, impact resistance, plasticity, fracture toughness, elasticity, endurance strength, creep resistance, and more. It also defines stress, strain, and explains Hooke's law relating stress and strain within a material's elastic limit according to its modulus of elasticity.
Unit 5_S1-S2 Mechanical Properties of Solids.pptx
This document discusses various mechanical properties of solids including elasticity, plasticity, stress, strain, tensile strength, hardness, fatigue, impact strength, and creep. Elasticity refers to a solid's ability to return to its original shape after a deforming force is removed. Plasticity means a solid does not return to its original shape after deformation. Hooke's law states that stress is directly proportional to strain within a material's elastic limit. The stress-strain curve illustrates a material's elastic region, plastic region, and yield point.
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Const matCh 1 .pptx
This document provides an overview of construction materials and their mechanical properties. It first classifies construction materials and then discusses various mechanical properties such as tensile strength, toughness, malleability, hardness, ductility, stiffness, brittleness, elasticity, and plasticity. It also examines the stress-strain behavior of materials under load, differentiating between ductile materials like steel and brittle materials like concrete. Factors that can affect material properties like heat treatment and processing are also outlined. The document concludes by asking readers to demonstrate their understanding of the covered topics.
Similar to Unit 1-stress, strain and deformation of solids (20)
Mechanical properties of dental material المحاضرة الأولى
Mechanical properties of dental material المحاضرة الأولى
Properties of dental materials by dr brajendra singh tomar
Properties of dental materials by dr brajendra singh tomar
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一比一原版(uoft毕业证书)加拿大多伦多大学毕业证如何办理
原版一模一样【微信：741003700 】【(uoft毕业证书)加拿大多伦多大学毕业证成绩单】【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
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二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
办理(uoft毕业证书)加拿大多伦多大学毕业证【微信：741003700 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(uoft毕业证书)加拿大多伦多大学毕业证【微信：741003700 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(uoft毕业证书)加拿大多伦多大学毕业证【微信：741003700 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(uoft毕业证书)加拿大多伦多大学毕业证【微信：741003700 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
Open Channel Flow: fluid flow with a free surface
Open Channel Flow: This topic focuses on fluid flow with a free surface, such as in rivers, canals, and drainage ditches. Key concepts include the classification of flow types (steady vs. unsteady, uniform vs. non-uniform), hydraulic radius, flow resistance, Manning's equation, critical flow conditions, and energy and momentum principles. It also covers flow measurement techniques, gradually varied flow analysis, and the design of open channels. Understanding these principles is vital for effective water resource management and engineering applications.
Null Bangalore | Pentesters Approach to AWS IAM
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
一比一原版(CalArts毕业证)加利福尼亚艺术学院毕业证如何办理
CalArts毕业证学历书【微信95270640】CalArts毕业证’圣力嘉学院毕业证《Q微信95270640》办理CalArts毕业证√文凭学历制作{CalArts文凭}购买学历学位证书本科硕士,CalArts毕业证学历学位证【实体公司】办毕业证、成绩单、学历认证、学位证、文凭认证、办留信网认证、（网上可查，实体公司，专业可靠）
(诚招代理)办理国外高校毕业证成绩单文凭学位证,真实使馆公证（留学回国人员证明）真实留信网认证国外学历学位认证雅思代考国外学校代申请名校保录开请假条改GPA改成绩ID卡
1.高仿业务:【本科硕士】毕业证,成绩单（GPA修改）,学历认证（教育部认证）,大学Offer,,ID,留信认证,使馆认证,雅思,语言证书等高仿类证书；
2.认证服务: 学历认证（教育部认证）,大使馆认证（回国人员证明）,留信认证（可查有编号证书）,大学保录取,雅思保分成绩单。
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办理加利福尼亚艺术学院加利福尼亚艺术学院毕业证文凭证书流程：
1客户提供办理信息：姓名生日专业学位毕业时间等（如信息不确定可以咨询顾问：我们有专业老师帮你查询）；
2开始安排制作毕业证成绩单电子图；
3毕业证成绩单电子版做好以后发送给您确认；
4毕业证成绩单电子版您确认信息无误之后安排制作成品；
5成品做好拍照或者视频给您确认；
6快递给客户（国内顺丰国外DHLUPS等快读邮寄）
-办理真实使馆公证（即留学回国人员证明）
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-全套服务：毕业证成绩单真实使馆公证真实教育部认证。让您回国发展信心十足！
（详情请加一下 文凭顾问+微信:95270640）欢迎咨询！子小伍玩小伍比山娃小一岁虎头虎脑的很霸气父亲让山娃跟小伍去夏令营听课山娃很高兴夏令营就设在附近一所小学山娃发现那所小学比自己的学校更大更美操场上还铺有塑胶跑道呢里面很多小朋友一班一班的快快乐乐原来城里娃都藏这儿来了怪不得平时见不到他们山娃恍然大悟起来吹拉弹唱琴棋书画山娃都不懂却什么都想学山娃怨自己太笨什么都不会斟酌再三山娃终于选定了学美术当听说每月要交元时父亲犹豫了山娃也说爸算了吧咱学校一学期才转
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024
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This document serves as a comprehensive step-by-step guide on how to effectively use PyCharm for remote debugging of the Windows Subsystem for Linux (WSL) on a local Windows machine. It meticulously outlines several critical steps in the process, starting with the crucial task of enabling permissions, followed by the installation and configuration of WSL.
The guide then proceeds to explain how to set up the SSH service within the WSL environment, an integral part of the process. Alongside this, it also provides detailed instructions on how to modify the inbound rules of the Windows firewall to facilitate the process, ensuring that there are no connectivity issues that could potentially hinder the debugging process.
The document further emphasizes on the importance of checking the connection between the Windows and WSL environments, providing instructions on how to ensure that the connection is optimal and ready for remote debugging.
It also offers an in-depth guide on how to configure the WSL interpreter and files within the PyCharm environment. This is essential for ensuring that the debugging process is set up correctly and that the program can be run effectively within the WSL terminal.
Additionally, the document provides guidance on how to set up breakpoints for debugging, a fundamental aspect of the debugging process which allows the developer to stop the execution of their code at certain points and inspect their program at those stages.
Finally, the document concludes by providing a link to a reference blog. This blog offers additional information and guidance on configuring the remote Python interpreter in PyCharm, providing the reader with a well-rounded understanding of the process.
Accident detection system project report.pdf
The Rapid growth of technology and infrastructure has made our lives easier. The
advent of technology has also increased the traffic hazards and the road accidents take place
frequently which causes huge loss of life and property because of the poor emergency facilities.
Many lives could have been saved if emergency service could get accident information and
reach in time. Our project will provide an optimum solution to this draw back. A piezo electric
sensor can be used as a crash or rollover detector of the vehicle during and after a crash. With
signals from a piezo electric sensor, a severe accident can be recognized. According to this
project when a vehicle meets with an accident immediately piezo electric sensor will detect the
signal or if a car rolls over. Then with the help of GSM module and GPS module, the location
will be sent to the emergency contact. Then after conforming the location necessary action will
be taken. If the person meets with a small accident or if there is no serious threat to anyone’s
life, then the alert message can be terminated by the driver by a switch provided in order to
avoid wasting the valuable time of the medical rescue team.
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Unit 1-stress, strain and deformation of solids
- 1. Strength of Materials Unit-1 STRESS STRAIN DEFORMATION OF SOLIDS
- 2. Strength of Materials • It’s the subject which deals with the detailed study about the effect of external forces acts on materials and ability of material to resist deformation. • The shape and size of various structures are designed by knowing the strength of materials.
- 3. Types of Stresses Tensile Stress Compressive Stress Shear Stress
- 4. TYPES OF LOADING Compression Tension (stretched) Bending Torsion (twisted) Shearing
- 5. TYPES OF STRAINS 1. Tensile strain 2. Compressive strain 3. Shear strain
- 6. Hooke’s Law Robert Hooke ( 1635 – 1703) The stress is directly proportional to Strain Within the Elastic Limits Material 1 Material 2 .
- 7. Poisson’s Ratio • Ratio of strain in the lateral direction to strain in the axial direction, when a tensile stress is applied to a material. Its value ranges from 0.25 t0 0.35
- 8. Factor of Safety Ultimate Stress Factor of Safety = --------------------------------------- Permissible (or) Working Stress
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