Stress Analysis of Composites.

reportActive / Technical Report | Accession Number: ADA098683 | Open PDF

Abstract:

In the static analysis, the hybrid-stress finite element model is used for 1 the study of edge effects in symmetrically-stacked laminates subject to prescribed inplane strain, 2 the development and evaluation of 8-node single-layer plate bending elements for which the traction-free conditions are satisfied along a straight edge, and 3 the elastic-plastic analysis of single layer plates. An analytic study is also presented to determine the nature of the potential 2-D singularity at the intersection of a bimaterial interface and a free edge. In the dynamic analysis, the stress response in a laminated composite due to a unit step load applied at the boundary is obtained for points which are a at a finite distance, and b at a large distance, from the impact end. For the case a, the composite may consist of a finite number of layers. Author

Author(s):
Spilker, R. L. ; Ting, T. C. T.
Author Organization(s):
ILLINOIS UNIV AT CHICAGO CIRCLE DEPT OF MATERIALS ENGINEERING
Descriptive Note:
Final rept. Aug 79-Aug 80,
Supplementary Note:
DOI: 10.21236/ADA098683
Pagination:
0244

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AMMRC-TR-81-5
Contract/Grant Number(s):
DAAG46-79-C-0045
Project Number(s):
8X363304D215
Monitor Series:
TR-81-5
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_1.4.2_Health Service Delivery; JCA_1.4_Force Support; JCA_5.3.3_Develop Strategy; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action; JCA_3.2_Engagement; JCA_3_Force Application; JCA_1_Force Support; JCA_3.2.1_Kinetic Means; JCA_1.2.5_Lessons Learned; JCA_1.2_Force Preparation; JCA_5.2_Understand; JCA_1.2.3_Educating; JCA_1.3_Human Capital Management; JCA_1.3.2_Personnel Management; JCA_5.5.2_Task; JCA_5.5_Direct; JCA_6.1_Information Transport; JCA_6_Net Centric
Modernization Areas:
Microelectronics; Space
Communities of Interest:
Air Platforms
Descriptor(s):
*STRESS ANALYSIS, *LAMINATES, *FIBER REINFORCED COMPOSITES, COMPOSITE MATERIALS, EDGES, FINITE ELEMENT ANALYSIS, VISCOELASTICITY, ELASTIC PROPERTIES, COMPOSITE STRUCTURES, WAVE PROPAGATION, PLATES, PLASTIC PROPERTIES, NONLINEAR ANALYSIS
Field(s)/Group(s):
Laminates and Composite Materials, Mechanics
Keyword(s):
PE63304A, AS215
Report Date:
1981 Jan 01