Compression Strength Reduction in Composites with in-Plane Fiber Waviness

Author(s):  
PJ Joyce ◽  
TJ Moon
1996 ◽  
Vol 118 (1) ◽  
pp. 63-70 ◽  
Author(s):  
Daniel O’Hare Adams ◽  
Michael W. Hyer

A finite element analysis was used to investigate layer waviness effects in flat compression-loaded composite laminates. Stress distributions in the vicinity of the layer waves as well as the locations and modes of failure were investigated. Two layer wave geometries were considered, each modeled within an otherwise wave-free thermoplastic composite laminate. These two wave geometries, classified as moderate and severe, corresponded to layer waves fabricated in actual laminates and tested under uniaxial compression loading. Material nonlinearities obtained from intralaminar shear and 0 and 90 deg tension and compression testing were incorporated into the analysis. The nonlinearity observed in the intralaminar shear stress-strain behavior was assumed to be valid for interlaminar shear stress-strain behavior, and the nonlinearity observed in the 90 deg tension and compression stress-strain behavior was assumed to be valid for interlaminar normal stress-strain behavior. Failure was predicted using a maximum stress failure theory. An interlaminar tension failure was predicted for the severe layer wave geometry, producing a large compression strength reduction in comparison to the wave-free laminate. Fiber compression failure was predicted for the moderate layer wave, producing only a slight compression strength reduction. Although significant material nonlinearity was present in the interlaminar compression and shear response of the material, the inclusion of material nonlinearity produced only slight decreases in predicted compression strengths relative to predictions based on linear material behavior.


Author(s):  
Abdelmajeed Altlomate ◽  
◽  
Shahiron Shahidan ◽  
Faesal Alatshan ◽  
Mohammed Elkher ◽  
...  
Keyword(s):  

2017 ◽  
Vol 5 (2) ◽  
pp. 20-30
Author(s):  
Zaman Khalil Ibrahim

In this research aluminum matrix composites (AMCs) was reinforced by titanium carbide (TiC) particles and was produced. Powder metallurgy technique (PM) has been used to fabricate AMCs reinforced with various amounts (0%, 4%, 8%, 12%, 16% and 20% volume fraction) of TiC particles to study the effect of different volume fractions on mechanical properties of the Al-TiC composites. Measurements of compression strength and hardness showed that mechanical properties of composites increased with an increase in volume fraction of TiC Particles. Al-20 % vol. TiC composites exhibited the best properties with hardness value (97HRB) and compression strength value (275Mpa).


Alloy Digest ◽  
1954 ◽  
Vol 3 (3) ◽  

Abstract PRESSURDIE-3, developed particularly for injection and compression molding, has high compression strength, wear resistance, and corrosion resistance. It is a ASM Class IV-B type alloy. This datasheet provides information on composition and hardness. It also includes information on forming, heat treating, and machining. Filing Code: TS-19. Producer or source: Continental Copper & Steel Industries Inc..


Alloy Digest ◽  
1961 ◽  
Vol 10 (11) ◽  

Abstract Milne CMV is a 5% chromium, medium-carbon hot work tool steel, having high compression strength, wear resistance, and corrosion resistance. This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness and creep. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: TS-111. Producer or source: A. Milne & Company (Distributor).


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