1. (a). State the FOUR main classes of engineering materials. Give ONE examples for each class of engineering materfals.bahan kejuruteraan.Nyatakan EMPAT pengkelasan bahan kejuruteraan. Berikan SATU contoh bagi setiap pengkelasan(b). Given that a steel bar with cross area of 50 mm? is subjected to tensile force of 1000 N. Compute the density of steel bar. Given the lengthof bar is 50 cm and gravitational acceleration, g is 9.8m/s?Diberi suatu keluli bar dengan keratan rentas 50 mm2 dikenakan tegasan tegangan sebanyak 1000 N. Kirakan ketumpatan keluli bar ini. Diberikanpanjang bar adalah 50 cm dan pecutan graviti, g ialah 9.8m/s.(c). A structural plate component of an engineering design must support 207 MPa in tension. If aluminum alloy 2024-T851 is used for thisapplication, calculate the largest internal flaw size that this material can support. Given Y =1, K1c = 26.4.Satu komponen plat struktur bagi rekabentuk kejuruteraan mesti menyokong tegangan sebanyak 207 MPa. Jika aloi aluminium 2024-T851digunakan untuk aplikasi ini, kira saiz kecacatan dalaman terbesar yang boleh disokong oleh bahan ini. Gunakan Y =1. K,c= 26.4(d). Name TWO common examples of thermoset materials. Explain why thermoset materials cannot be reformed by reheating.Namakan DUA contoh biasa bahan thermoset. Terangkan mengapa bahan termoset tidak boleh dibentuk semula setelah dipanaskan semula.

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1. (a). State the FOUR main classes of engineering materials. Give ONE examples for each class of engineering materials.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Concept explainers

Thermal Properties of Materials

In mechanical engineering, the thermal property is represented as the physical quantity that is relevant to the application of heat. The thermal properties are evaluated by variations in any specific material due to low heat or high heat. The quantities that influence the thermal property of the materials are mass, density, temperature, and many others.

Question

1. (a). State the FOUR main classes of engineering materials. Give ONE examples for each class of engineering materfals.
bahan kejuruteraan.
Nyatakan EMPAT pengkelasan bahan kejuruteraan. Berikan SATU contoh bagi setiap pengkelasan
(b). Given that a steel bar with cross area of 50 mm? is subjected to tensile force of 1000 N. Compute the density of steel bar. Given the length
of bar is 50 cm and gravitational acceleration, g is 9.8m/s?
Diberi suatu keluli bar dengan keratan rentas 50 mm2 dikenakan tegasan tegangan sebanyak 1000 N. Kirakan ketumpatan keluli bar ini. Diberikan
panjang bar adalah 50 cm dan pecutan graviti, g ialah 9.8m/s.
(c). A structural plate component of an engineering design must support 207 MPa in tension. If aluminum alloy 2024-T851 is used for this
application, calculate the largest internal flaw size that this material can support. Given Y =1, K1c = 26.4.
Satu komponen plat struktur bagi rekabentuk kejuruteraan mesti menyokong tegangan sebanyak 207 MPa. Jika aloi aluminium 2024-T851
digunakan untuk aplikasi ini, kira saiz kecacatan dalaman terbesar yang boleh disokong oleh bahan ini. Gunakan Y =1. K,c= 26.4
(d). Name TWO common examples of thermoset materials. Explain why thermoset materials cannot be reformed by reheating.
Namakan DUA contoh biasa bahan thermoset. Terangkan mengapa bahan termoset tidak boleh dibentuk semula setelah dipanaskan semula.

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