MICRO TENSILE TEST MACHINE
Due to scale
effects, nanostructures are expected to show different mechanical properties from
their bulk counterparts. In this chapter, several experimental techniques that
could be used to measure mechanical properties of nanostructures are briefly
reviewed, which include the classical tensile test. The main advantages and
limitations of each technique are outlined. Tensile testing is straightforward
and reliable, as the stress state in the specimen tends to be uniform. The main
requirements for tensile testing at the micro scale are discussed, and the
state of the art is reviewed with an emphasis on micro/nano specimen based nano
tensile tests.
Engineering
and design are based on metrology and instrumentation, because you cannot
design while you do not know what you have. When starting to solve this problem
you are aware of that there are need to some special devices. Also manufacturing
has many serial and interconnecting processes and one of the most important
steps is quality control. Because using material must have intended properties
and it performs that in the expected time. In quality control process, material
is experimented by many tests and micro tensile test is one of them. Micro
tensile test measure the strain-stress according to elongation of specimen and
applied force until fracture. The test results give young’s modulus, poison
ratio, yield strength, ultimate strength, fracture and deformation. The
usage areas of the micro tensile test machine are engineering, university
laboratories, R&D, biomedical and analytical medical and the usage purposes
of the micro tensile test machine are quality control, metrology and material
characterization.
Micro
tensile test and tensile test have difference properties from each other. Micro
tensile test’s specimen dimensions are smaller than tensile test’s specimen.
Also micro tensile test machine do not need more force as against to tensile
test machine. In addition the more transportability and more ergonomic are one
of the main differences of micro tensile test machine. The motivation,
originality, and major contributions of this work is;
Various
experiments and micro scale modeling have shown that the mechanical behavior of
nanostructured materials could be remarkably different from their bulk
counterparts. However, exploring material behavior at the nanoscale is hindered
by the difficulties of conducting well-instrumented mechanical testing. Micro and
Nano tensile testing is more straightforward and precise than the other testing
methods, but it encounters significant challenges. The motivation of this work
is to develop in first step a micro tensile testing instrument for
characterizing 1D micro structures, aiming at revealing novel material behavior
at the micro scale, and understanding the underlying material deformation
mechanisms.
The main
originality of this work is the realization of a novel modular micro tensile
stage designed and developed using local source and that can be used for in-situ
microscopy mechanical testing of individual 1D micro structures.
oEngineering
oUniversity
Laboratories
oR&D
oBiomedical
oAnalytical
medical
Purposes
of Usage
oQuality
Control
oMetrology
oMaterial
Characterization
Linear motion system
Servo Motor
Pulse Card
Driver
Micro Tensile Test Machine
Wrong Specimen Result