subjected loads s.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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For a 60° angle lamina that subjected loads shown below,
15 MPa
T
3.5 MPa
1.4 MPa
Ox = -3.5 MPa, oy = 15 MPa, Txy = -1.4 MPa
Calculate the stresses in L-T directions (ơ1, ơr, TLt)
Determine whether the lamina will fail under these applied loads by using Tsai-Hill failure criteria.
Determine whether the lamina will fail under these applied loads by using maximum stress failure
criteria.
Mechanical properties:
EL = 14 GPa; ET=3.5 GPA; GLT = 4.2 GPa; vt = 0.40
Strength (In case of tension): OLU = 250 MPa, ơTu =
10 MPa
Strength (In case of compression): OLU = 200 MPa, ơTu = 0.5 MPa
Shear strength: TLTU = 8 MPa
OT
+
OLu
+
<1
Tsai-Hill criterion:
OLu
-
OLu
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