A glass consists of cracks at surface and interior side. The surface crack lengths are s 5 µm, the cracks at the interior are < 20µm, and the average crack length is 8 µm. The glass is exposed to tensile stress. a) What is the maximum stress the glass can withstand? b) What is the maximum compressive strength? J/m = Pa/m2 Given, y = 1 J m2 and Y = 70 GPa.

A glass consists of cracks at surface and interior side. The surface crack lengths are s 5 µm, the cracks at the interior are < 20µm, and the average crack length is 8 µm. The glass is exposed to tensile stress. a) What is the maximum stress the glass can withstand? b) What is the maximum compressive strength? J/m = Pa/m2 Given, y = 1 J m2 and Y = 70 GPa.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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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

A glass consists of cracks at surface and interior side. The surface crack lengths are s 5 um, the
cracks at the interior are < 20um, and the average crack length is 8 µm. The glass is exposed to
tensile stress.
a) What is the maximum stress the glass can withstand?
b) What is the maximum compressive strength?
J/m = Pa/m?
Given, y = 1 J m² and Y = 70 GPa.
Kịc
Ofail = Z
TCavg
Z = 15

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