Some considerations for modeling the creep behavior of composite materials
A simple treatment of the mechanics of creep in unidirectional composites is presented with the objective of stressing the need for using appropriate constitutive equations when modeling the behavior of the constituents. It is demonstrated that pseudo-constitutive relations, such as those obtained from constant stress creep experiments for example, can not be used to describe the mechanical behavior of the constituents when modeling the creep of composites. By describing the mechanical behavior of the composite constituents using linear viscoelastic models, an analysis is presented to assess the type of errors which are incurred when inappropriate constitutive relations are used. Other considerations for modeling the creep behavior of ceramic matrix composites are discussed.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 10153692
- Report Number(s):
- CONF-940135-6; ON: DE94012112; TRN: 94:005716
- Resource Relation:
- Conference: 18. annual conference on composites and advanced ceramics,Cocoa Beach, FL (United States),9-14 Jan 1994; Other Information: PBD: [1994]
- Country of Publication:
- United States
- Language:
- English
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