A modified version of the cantilever bending beam method is employed to subject a number of rigid and semi-rigid rod fibres to a gradient of axial compressive and tensile stresses. The molecular deformation of the filaments in tension and compression is monitored by scanning along the length of the filaments with a laser Raman microprobe. Strain hardening phenomena in tension and strain softening phenomena in compression are closely studied. Finally, a method for converting the Raman spectroscopic data into stress-strain curves in both tension and compression, is demonstrated.
Посилання на статтю:
Deformation behaviour of liquid crystal polymer fibres: 1. Converting spectroscopic data into mechanical stress-strain curves in tension and compression / C. Vlattas and C. Galiotis // Polymer. – 1994. – Vol 35. – P. 2335-2347.