Elastic modulus of the 17 and 50 loblolly clones were measured by DSCM . The result showed E L, E T and E R of the 17 loblolly clone were 6 110, 1 207, 1 576 MPa, respectively. Those of the 50 loblolly clone, however,...Elastic modulus of the 17 and 50 loblolly clones were measured by DSCM . The result showed E L, E T and E R of the 17 loblolly clone were 6 110, 1 207, 1 576 MPa, respectively. Those of the 50 loblolly clone, however, were 5 965, 1 308, 1 606 MPa, respectively. In addition, the method of DSCM for the compression elastic modulus of loblolly was right and proved by resistance strain gages. The error was 1%～7%. DSCM have some virtues, such as simple optical setup, convenient measurement, etc.展开更多
文摘Elastic modulus of the 17 and 50 loblolly clones were measured by DSCM . The result showed E L, E T and E R of the 17 loblolly clone were 6 110, 1 207, 1 576 MPa, respectively. Those of the 50 loblolly clone, however, were 5 965, 1 308, 1 606 MPa, respectively. In addition, the method of DSCM for the compression elastic modulus of loblolly was right and proved by resistance strain gages. The error was 1%～7%. DSCM have some virtues, such as simple optical setup, convenient measurement, etc.
