NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Failure and fatigue mechanisms in composite materialsA phenomenological description of microfailure under monotonic and cyclic loading is presented, emphasizing the significance of material inhomogeneity for the analysis. Failure in unnotched unidirectional laminates is reviewed for the cases of tension, compression, shear, transverse normal, and combined loads. The failure of notched composite laminates is then studied, with particular attention paid to the effect of material heterogeneity on load concentration factors in circular holes in such laminates, and a 'materials engineering' shear-lay type model is presented. The fatigue of notched composites is discussed with the application of 'mechanistic wearout' model for determining crack propagation as a function of the number of fatigue cycles.-
Document ID
19760039496
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Rosen, B. W.
(Materials Sciences Corp. Blue Bell, PA, United States)
Kulkarni, S. V.
(Materials Sciences Corp. Blue Bell, PA, United States)
Mclaughlin, P. V., Jr.
(Materials Sciences Corp. Blue Bell, Pa., United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1975
Subject Category
Composite Materials
Meeting Information
Meeting: Inelastic behavior of composite materials
Location: Houston, TX
Start Date: November 30, 1975
End Date: December 5, 1975
Accession Number
76A22462
Funding Number(s)
CONTRACT_GRANT: N62269-74-C-0662
CONTRACT_GRANT: N62269-73-C-0800
CONTRACT_GRANT: F33615-71-C-1604
CONTRACT_GRANT: NAS1-12967
CONTRACT_GRANT: NAS1-11780
CONTRACT_GRANT: N62269-72-C-0411
CONTRACT_GRANT: NAS1-10134
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available