What is Stress and Strain Curve?

When you are talking about solids and various other materials, it is crucial to understand how these types of materials usually react when a force is applied. This process helps the students identify their strengths, deformations, and various other parameters acting on the objects, by calculating the various types of forces acting on them. And in order to find these parameters, the stress and strain quantities are important, and here in this article, we are going to provide a detailed guide about them below.

What is Stress?
Stress is defined as the force per unit area that is observed, in different types of materials, when an external force is applied. These external forces are generally uneven heating, permanent deformation, etc.

Types of Stress
There are different types of Stress that can be applied to a material, such as,

Compressive Stress
When a force acts on a body, it causes a reduction in the volume of the said body, resulting in deformation. This type of stress is referred to as Compressive stress.

Tensile Stress
When an external force is applied per unit area on a material, and it results in the stretching of the said material, then it is described as Tensile Stress.

What is Strain?
If a body experiences deformation due to the applied external force in a particular direction, then it is called strain. Moreover, the strain does not have any dimensions, as it only explains the change in the shape of the object.

Types of Strain
Similar to stress, strain is also differentiated into Compressive Strain and Tensile Strain.

Compressive Strain
Compressive strain is defined as the deformation observed on an object when compressive stress acts on it. And in this type of strain, the length of the material or object generally decreases.

Tensile Strain
The Tensile stress acting on a body or a material that causes the increase in the length of said material is referred to as a tensile strain.

Stress-Strain Curve
This graph explains how stress and strain act on a body with respect to each other, as well as the different regions formed on the graph.

The OA line represents the Proportional Limit, as it described the region, where the material or body obeys Hooke’s Law. And this line can help students to calculate Young’s Modulus, using the ratio of
Stress and Strain Curve.
Now, the AB line represents the Elastic Limit of the object, which means that after this point, the body does not retain its original shape or size, when the acting force is removed.
As you can guess, the BC lines describe the Yield Point. Which, when force is applied on the material, then there is complete deformation in the object, which cannot be reversed, even if the force is removed.
D point on the graph is the point beyond which students can observe the complete failure of the object, as it crosses the maximum stress a material can endure. This point is stated as Ultimate Stress Point.
E is the Fracture of Breaking Point, at which students can observe the complete failure of deformation of the object, regardless of the force whether it is applied or removed.
Hooke’s Law
From the above sections, we have learned all about types of stress and strain, and their units, as well as a graphical representation of stress and strain on objects. Now let us talk about Hooke’s law of stress and strain, which plays an important role in helping us understand how stress and strain work on an object when force is applied.

According to this principle, the strain of the material is equal to the applied stress, in the elastic limit region of the said object or material. And it is represented as,

F = –k.x

F = Force

X = Extension of Length

K = Spring Constant

In the above article, we have explained in detail the terms, stress and Strain, how they act, units of stress and strain, types of stress and strain, etc. This will be helpful for students to solve any kind of problems from these chapters, or understand other subtopics easily from the next chapters. However, if you are still worried, about how to cover a large number of complex topics and chapters in Physics. Then the best solution for you is to join Online Coaching Platforms. Like the Tutoroot platform, which offers cost-effective online interactive classes that come with various amazing benefits for the students.

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Which log file helps in QRadar troubleshooting?




Answer: C
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Ace Your UPSC Interview: Tips and Tricks for Success

Suppose: It’s the day of your UPSC interview. You’ve been preparing for months, and the moment is finally here. You walk into the room, and the interview panel greets you. They start questioning about your background and your experience.

How do you ace your UPSC interview? In this article, we’ll share some tips and tricks for success. We’ll also give you a few key points on how to stay calm and cool during your interview. So either you’re a first-time applicant or you’ve been through the interview before, read on for some helpful advice.

Understanding the UPSC Interview Process
The UPSC interview is your chance to be the one out of the other candidates.

It’s a formal, hard process where you’ll be tested on your knowledge, skills and attitude. But don’t worry, we’re here to help you prepare for it. In this article, we’ll suggest you some tips on how to ace your interview and make a good impression on the panel members.

The first step is to understand the interview process. The panel will ask you questions about your academic background, work experience, extracurricular activities, etc. They’re looking for qualities like leadership, problem-solving skills, teamwork and communication skills. So make sure you’re well-prepared.

Strategies for Staying Calm and Composed During the Interview
Now that you know the do’s and don’ts for the interview, it’s time to focus on how to stay calm and composed during it. After all, nervousness will only make things worse.

Here are a few strategies that will help you keep your cool:
-Take a deep breath and relax.

-Visualize yourself passing the interview.

-Remind yourself that you’re prepared and know what you’re talking about.

-Think about something calming and distracting, like your favourite music or a happy memory.

How to Practice for Your UPSC Interview
Now that you know about the basics of what to expect in your IAS interview, it’s time to start preparing yourself.

The best way to prepare is to rehearse the actual interview experience. This means finding someone who can interview you and asking them to judge your performance. Make sure you practice answering different types of questions and have a friend or family member ask you unpredictable questions to really test your skills.

Mock interviews with people who will be terrifically honest with you. They will give you an idea of where you need to work and what your strong points are.

Preparation Tips for a Successful Interview
The interview is the final step and it’s important to remember that you are being questioned for your knowledge, not just your ability to mug up answers.

Here are a few tips to help you:
First, know your stuff. This might seem obvious, but it’s important to be well-informed about the subject matter you’ll be discussing. Not only this will help you answer questions confidently, but it will also help you think about the question that you never imagine is going to be asked.
Second, be yourself. The interview panel is looking for someone who has good knowledge and is passionate about the job, so don’t try to be someone different. They can see through that, and it won’t do you any favors in the long run. Be honest about your strengths and weaknesses.
Finally, keep yourself calm. This is probably the most important tip of all. If you’re tense and overwhelmed, it will show. Take a few deep breaths before going in, and try to relax as much as possible. Remember that the panel is on your side and they want you to do well.
Key Takeaways From Successful UPSC Interviews
Some key takeaways from successful IAS interviews include being confident and having a clear understanding of current affairs.

Be confident: It is important to remember that the interviewers are not looking for perfection, but for candidates who are confident in their abilities. Be sure to make eye contact and speak clearly.
Have a clear understanding of current affairs: In order to ace your UPSC interview, you need to have a good understanding of current affairs. That means you should have good knowledge about recent events, as well as issues that are relevant to the UPSC.
Be able to think on your feet: The interviewers will ask you questions that you may not have expected. Therefore, it is important to be able to think on your feet and come up with answers quickly.
Common Mistakes to Avoid in the UPSC Interview
Now that you know what the UPSC interview is all about and how to prepare for it, let’s move on to some common mistakes that you should avoid anyhow.

First, don’t try to memorize answers to potential questions. The interview panel can see right through this and it will only make you more nervous. Instead, you can focus on understanding the concepts and try to explain them in your own words.
Secondly, don’t be afraid to take pause before answering a question. It shows that you are thinking about the question and trying to well fit the response.
Thirdly, avoid one-word answers. This is the time for you to show them your knowledge and express your thoughts clearly. So make sure to elaborate on your answers and give examples where possible.
Finally, don’t get into an argument with the interview panel. If you disagree with something they say, politely explain your point of view but don’t get too emotional about it.
So, if you’re feeling nervous about your upcoming UPSC interview, just remember to stay calm and confident. Go in there with a positive attitude, and be prepared to answer any questions they put on your way. And most importantly, don’t forget to enjoy the experience! It’s an important milestone in your career, and you should be proud of yourself for making it this far.