Transverse tensile strength

In addition to the direct measurements of fiber-matrix interface properties discussed in Section 3.2, a number of testing techniques have been devised to assess the fiber-matrix interface bond quality by inference from the gross mechanical properties such as interlaminar shear strength (ILSS), translaminar or in-plane shear strength, and transverse tensile strength. These testing techniques invariably employ... 

In the 90° direction, the fiber-matrix interphase is a controlling factor in the flexural strength. Here a 35% increase in flexural strength is measured in direct proportion to the increase in interfacial shear strength measured with the ITS tests. The transverse tensile strength of the fiber-matrix interphase is greater for the finished fiber than for the bare fiber. Apparently the lower toughness of the... 

Figure 14. Relative axial tensile strength improvement and transverse tensile strength reduction resulting from the effect of a drawing process on the flaw spectrum. The transverse curve is the limiting curve defined by Equation 29 for R = 0.

It seems quite plausible, therefore, that the transverse tensile strength reduction in drawn low molecular weight polymer is governed primarily by flaw spectrum changes as described in the theory presented, with... 

Fig. 4.3 Transverse yield and transverse tensile strengths of 5454-H32 friction stir welds produced at a range of welding speeds...

X-65. Reference 22 reported postweld mechanical properties in 6 mm (0.25 in.) thick FSW X-65 pipe. Transverse tensile strengths were equivalent to the base metal. All tensile samples fractured in the base metal well removed from the weld or HAZ. Charpy impact results in the weld nugget and HAZ exceeded that of the base metal at -50, 0, and 20 °C (-58, 32, and 68 °F). These results are shown in Fig. 6.2. 

Fiber Axial modulus GPa (Msi) Transverse modulus GPa (Msi) Inplane shear modulus GPa (Msi) Poisson s Ratio Axial tensile strength MPa (Kslj Transverse tensile strength MPa (Ksij Axial compressive strength MPa (Ksi) Transverse compressive strength MPa (Ksi) Inplane shear strength MPa (Ksi)... 

Similar ENF tests, together with transverse tension tests [65], were conducted on unidirectional E-glass/polypropylene (ICI Plytron ZM4350PA) after exposure to distilled water (ambient and 50°C) and Boca Raton sea water (ambient temperature). Maximum stable moisture content after 5 months exposure was 0.065% for sea water and 0.17/0.30% for ambient/ 50°C distilled water, respectively. The transverse tensile strength was virtually unaffected by water absorption. The mode II fracture toughness was far more sensitive to moisture absorption. Ghnl (onset of non-linearity) values for all water exposure conditions drop and can be fitted to a single curve. 

According to EN 301 (2006) [6], the mean transverse tensile strength of untreated control test samples must not be lower than 2 N/mm and the mean transverse tensile strength of the treated test samples must not be lower than 80% of the control. 

EN 302-3 2004 and EN 302-3/A 1 2006, Adhesives for load bearing structures — Test methods — Part 3 Determination of the effect of acid damage to wood fibres by temperature and humidity cychng on the transverse tensile strength. 

Continuous Filament (%) Chopped Glass (%) Tensile Strength MPa Flexural Strength MPa Transverse Tensile Strength MPa Transverse Flexural Strength MPa... 

Transverse tensile strength Tensile elastic modulus, E Shear modulus, G (calculated) Density... 

Table 2.60 Summary of Transverse Tensile Strengths of Various Aluminum-Graphite Composite Systems (5)...

Table 2.62 Transverse Tensile Strengths for 356 Aluminum-Courtaulds HM Graphite Composite (5) ...

When considering off-axis properties, the fiber matrix adhesion has a greater effect on the transverse flexural strength than the transverse tensile strength. 

---