in the range of theory, and the value from the second experiment is 0.16 which also comes under the range of theory. In case of specimen no.1, there was an error of 12.6% but the Poisson's ratio is highly appropriate. From this, we can analogize the Poisson's ratio has nothing to do with strength, but is related to the materials.
4. Shear Modulus of Elasticity
‣ Theoretical Value
methods that can be measure Young's modulus with reliability and reappearance are needed to develop the new materials i.e. composite and thin film materials.
In general, there are two methods to measure the Young's modulus. The first one is called the 'static method' that is the way to measure the deformation strain that are corresponded to applied force using the strain gage. In other way, 'k
01 Introduction
- What is Sheet pile?
Board shape’s post used in civil and architecture construction
When digging the foundation and tunnel, prevent to collapse around the ground or ceiling
Use in underwater construction for drainage
(중략)
4. Alternative Method
- Overcoming the downsides
Eliminating Compression Anchored method
Using Released head and Speed type Anchor hea
(1) 응력(Pa) : 인장기기와 연결된 소프트웨어에서 얻은 시간에 따른 하중 P(kgf)를 사용하여 SI단위 하중 P(N)로 나타내기 위해 하중 P(kgf)에 9.8m/s2를 곱한다.
실험 전 측정한 너비와 두께 치수를 이용하여 A0를 구할 수 있다.
응력 (N/m2)
(2) 변형률 : 실험 중 10초 간격으로 촬영한 사진을
※반도체 제조공정 중 기존의 lithograph 공정과 잉크젯 프린팅 공정의 차이와 잉크젯 프린팅 공정을 적용하였을 경우 얻어지는 장점
A. 반도체 제조공정 중 기존의 lithograph 공정
1.Photolithography
리소그래피는 포토레지스트를 도포하는 공정으로 시작해 노광, 현상, 에칭, 포토레지스트 제거에 이르는