一、前言木材顺纹抗拉强度试验,是研究木材顺纹方向承受拉力荷载的能力。长期以来,我国的该项试验是按照苏联国家标准гост 6336—52中规定的方法进行的。这一方法,经常使试样端部先发生剪力撕裂,然后产生抽心等不正常破坏。不正常破坏使试件作废,降低了正常破坏率,使试验结果难以具有一定的代表性和精确度。本试验的目的,是设计出一种形状、尺寸较合理的顺纹抗拉试样,以提高试件的正常破坏率,从 First, the foreword Wood along the grain tensile strength test is to study the ability of the wood along the grain direction to withstand tensile load. For a long time, this test in our country was carried out according to the method stipulated in the national standard гост 6336-52 of the Soviet Union. This method, often the first end of the specimen shear force tear, and then generate pumping heart and other abnormal damage. Abnormal damage to invalidate the specimen, reducing the normal damage rate, the test results is difficult to have a certain degree of representation and accuracy. The purpose of this test is to design a shape and size of the specimen along the line to improve the normal specimen failure rate from