Crystals are seen occasionally within the diameter of transversely sectioned collagen fibrils near the calcification front of newly formed bone.

Long glass fiber-reinforced polypropylene (LGFR-PP) composite structures with stiffeners are important substitutes for metal parts vehicle lightweighting; a good understanding of the buckling characteristics LGFR-PP would provide an reference engineering design. The current work is therefore intended to study different cross-sectioned under axial compression via experimental and theoretical ana...