RESIDUAL STRESS ANALYSIS, WOVEN STEEL FIBER REINFORCED THERMOPLASTIC COMPOSITE CANTILEVER BEAM LOADED BY A CONSTANT SINGLE FORCE AT ITS FREE END

In this study an elastic-plastic stress analysis is carried out in a woven steel fiber reinforced thermoplastic composite cantilever beam loaded by a constant single force at its free end. The expansion of the plastic region and the residual stress compenent of ?x are determined 0, 15, 30 and 45 orientation angles. Yielding begins for 0 and 45 orientation angles both of upper and lower surfaces of the beam at the same distances from the free end. An elastic-plastic analysis is carried out for the plastic region which spreads at the upper and lower surfaces together. The residual stress compenents are obtained after releasing the external force. The distributions of the residual stress compenents of ?x are also determined. The intensity of the residual stress compenents of ?x is maximum at the upper or lower surfaces of the beam.

TEKÝL KUVVETLE YÜKLENMÝÞ ÖRGÜLÜ ÇELÝK FÝBER TAKVÝYELÝ TERMOPLASTÝK KOMPOZÝT ANKASTRE KÝRÝÞLERDE ARTIK GERÝLME ANALÝZÝ

Bu çalýþmada tekil kuvvetle yüklenmiþ örgülü çelik fiber takviyeli termoplastik kompozit kiriþlerde elasto-plastik gerilmeler incelenmiþtir. Plastik bölgenin yayýlýþý ve ?x artýk gerilmesi 0, 15, 30 ve 45 derecelik takviye açýlarý için tanýmlanmýþtýr. Akma baþlangýcý 0 ve 45 derecelerde kiriþin alt ve üst yüzeylerinde kiriþ candan eþit uzaklýklarda birlikte baþlamýþtýr. Ýç kuvvetlerin tanýmlanmasýndan sonra artýk gerilme bileþenlerinin daðýlýmý bulunmuþtur. Artýk gerilmeler kiriþin alt ve üst yüzeylerinde maksimumdur.