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Question 1: Evaluate the importance of strength and stiffness in design context.

Answer

Definition of strength: The strength of a material can be defined as the ability of the material to remain undamaged or unaffected with applying a maximum load.
Definition of stiffness: It is the extent to which an object resists deformation in response to an applied force or load.
Design: It is the process in which engineers identify (point out) problems and find the solution of those problems.

All components of the construction

فرض کریں آپ گرڈرز اور ٹی۔آیرن کا کمرہ بنا رہے ہیں۔ کمرے کی لمبا‌یی 18 فٹ اور چوڑایی 14 فٹ ہے آپ درمیان میں ایک گرڈر لگا کر 9،9 فٹ کے دو خانے بنا سکتے ہیں۔ آپ دو گارڈرز لگا کر 6،6 فٹ کے 3 خانے بنا سکتے ہیں۔ آپ تین گرڈرز لگا کر 5۔4، 5۔4 فٹ کے 4 خانے بنا سکتے ہیں۔ لیکن فیصلہ کرتے وقت آپ کو معلوم ہونا چاہیے کہ چھت پر جو میٹیریل ڈالا جارہاہے، اس کا وزن کتنا ہوگا۔ نیز گرڈرز کی تعداد کے حساب سے گرڈرز اور ٹی-آیرن کی مضبوطی کیسی ہونی چاہیے، جو کہ عام طور پر گرڈرز کی گیج سے معلوم کی جاسکتی ہے۔ اور ان تمام معلومات کی بنیاد پر آپ کمرے کی ڈیزاین وغیرہ کا فیصلہ کر سکیں گے۔ اس سوال میں بنیادی طور پر یہی پوچھا گیا ہے۔

material have their own utilities in the design. The usefulness of the component depends upon its properties like strength and stiffness.
When an engineer designs a project, such as a multi-storey building, bridge or road, he keeps in mind the load. Then he uses material strong enough to support that load. For example in the case of a road, he takes care of the expected traffic load on it. Therefore, he select material which are suitable for bearing that load.
Thus if the appropriate level of the strength and stiffness is not taken care of, the road will not be sustainable and will damage soon.
Thus the strength and stiffness considerations are important in the context of engineering design.

4 Comments

  1. Pingback:Conceptual Questions, Physics of Solids, Physics 12 – msa

  2. Danyal

    Please make all the questions downloadable as soon as possible bcz it’s difficult to take screenshots .
    Plz make all of them downloadable at once before 22 July

    • admin

      Danyal
      The site is incomplete yet. Download option will be provided once the site is completed and reviewed. Sorry, you have inconveniences.

  3. Pingback:Superconductivity – msa

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