The lightweight structure research group of the Faculty of Mechanical and Aerospace Engineering ITB has various facilities to support research, both in the form of experimental equipment and computing facilities.
The Instron machine has capabilities to carry out several material characterization test such as:
- Tensile test
- Compression test
- Three point bending test
- Fracture toughness test
- Fatigue test
The machine is equipped with various sensors to measure load and displacement and it can be combined with Digital Image Correlation (DIC) devices.
Llyod Instrument LRXPlus
Llyod Instrument LRXPlus is an easy to use device to perform mechanical characterization for small and soft material with maximum load lower than 5 kN by using XLC Series load cells.
Split Hopkinson Pressure Bar
Split-Hopkinson Pressure Bar (SHPB) apparatus is a widely recognized testing device to measure compression stress-strain curves of a material subjected to high-velocity impact (1000/s strain rate). The apparatus is composed of two main components i.e. high-pressure tank dan IC4340 steel bars. The strain rate range that can be probed by the device is within range of 500-10000/s. The specs of the apparatus is given below:
- Diameter bar : 10 mm
- Component length: 1000 mm
- Striker length : 300 mm
Digital Image Correlation
Digital Image Correlation (DIC) is an optical method aimed to measure image from 2D or 3D objects based on the change of image. The object surface is captued and aved in the form of digita image that later be used for measurement. DIC is non-contact so it will not damage the object and the measurement is full-field. In our group, we also developed in-house DIC softwares to measure strain in our experiments.
Bending and flexural tests machine
The testing machine is operated by manual loading mechanisms that use screw power system with load cell capacity reaches 1000 N. The spesimen dimension for bending test usually 2 mm thick, 20 mm width and with various length from 300 to 500 mm. For the flexural test, the specimen dimension is 3 mm × 20 mm × 600 mm.
The extensometer is used for tensile and compression test. The capacity of the Lloyd extensometer is within 1.25 mm to 250 mm displacement.
The laboratory has several mock-up of CN235 airframe for the teaching purpose. The airframe was composed of fuselage, wing and tail.
The group has also been equipped with high-end computing facilities for research related to computational mechanics. In total, there are 12 computers available: 1 server computer (Intel Xeon E5-2630-v3, 32 GB RAM DDR4, NVIDIA Quadro K620) and 11 operational computers (Intel Core i7-3770K up to Intel Core i7-5960X, 16-32 GB RAM, 4-20 GB NVIDIA GPU). Available and licensed software consists of Abaqus, LS-Dyna, HyperWorks, and LabView.
Working space for students and researchers