Tensile strength of composites

T = ultimate tensile strength of composite, psi T0 = ultimate tensile strength of matrix compound W = elongation at break of composite, %... 

In mixtures of particles, the stress of debonding is not uniform. Higher stress is needed to debond from smaller particles." Adhesion is inversely proportional to the cube root of the diameter of the particles. " Experiments confirmed that large particle sized filler decreased the tensile strength of composites. The filler concentration effect is not linear. Up to a certain concentration, filler did increase the tensile properties but beyond certain level there is a reverse effect. This may relate to the interactions described in previous sections where the quality of bonding (weak or strong) depended on filler concentration. 

The data in Table 8.1 shows how the tensile strength of composite can be improved. The following factors contribute to the improvement of tensile strength ... 

It has been reported that ultimate tensile strength (UTS) of pure PVC- epoxidized natural rubber (ENR) blend reduced from 9 MPa to 6 MPa upon addition of 30% OPFs [11]. The reduction in tensile strength of composites at higher fiber loading was due to the agglomeration of the filler particles to form a domain that acts like a foreign body. 

Upon analyzing the data of Table 10.1, it was observed that the tensile strength of composites reinforced with fibers modified by mercerization increased compared to pure HOPE and the other composites. However, an increase in the strength of composites occurred when compared to the pure matrix. 

Table 3.131. Tensile strength of composite, s, and matrix, s for 30 weight % (16 vol. %) short-glass-fiber-reinforced thermoplastic composites [1260]...

An ANN predictive approach was developed with inputs as the drill point geometry, the feed rate and the cutting speed with residual tensile strength of composite with drilled holes as the output. The maximum absolute error for testing... 

Figure 4. Tensile strength of composites vs. molecular weight of MAPP... 

The tensile strengths of composites containing the treated and untreated fillers are shown in Figure 11. At 20% by weight filler loading the tensile strength of polypropylene was reduced by all three fillers. This had been expected since all the... 

In the case of fibers, their shape is very important besides all other characteristics. The elasticity and the flexural and tensile strengths of composites are governed by the length of fibers and by their orientation in the polymer matrix... 

Shen CH, Springer GS (1981) Effects of moisture and temperature on the tensile strength of composite materials. In Springer GS (ed) Environmental effects of composite materials. Technomic, Lancaster, PA, pp 15-33... 

Figure 11.1 Effect of processing on tensile strength of composites (Arvesen).

---