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020 _aTHE0008733(Local)
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040 _aUMP
_beng
_cUMP
_erda
090 _aFKASA .S937 2019 r Bc.
100 0 _aNur Syahirah Basri Shaff,
_eauthor.
245 1 0 _aNumerical analysis of blast pressure parameters for the plant and wall as barrier /
_cNur Syahirah Basri Shaff
264 1 _aKuantan, Pahang :
_bUMP,
_c2019
264 4 _c© 2019
300 _axi, 41 pages :
_billustrations (some color) ;
_c30 cm. +
_e1 CD-ROM
336 _atext
_2rdacontent
336 _atext
_2rdacontent
337 _aunmediated
_2rdamedia
337 _acomputer
_2rdamedia
338 _avolume
_2rdacarrier
338 _acomputer disc
_2rdacarrier
347 _atext file
_bPDF
_2rda
500 _aFaculty of Civil Engineering and Earth Resources
502 _aProject Paper (Bachelors of Civil Engineering) -- Universiti Malaysia Pahang – 2019
504 _aIncludes bibliographical references
520 3 _aPlant is widely planted in many areas mainly to prevent soil erosion and as shading purpose from storm and heavy rain. Nowadays, planting plant is more likely to plant for aesthetical purpose in which the plant is cut to shapes to beautify a place. Previously, there was a research carried out that investigated plant as barrier when subjected to blast load. However, there are only few researches on plant academically published regarding plant as barrier. Thus, the academic reading on plant as barrier is basically limited. The published experiment and accessible for reference of this present study is the work focusses on different objects that is experimented for its ability to absorb or reduce blast pressure. It aims to study the blast pressure parameters of 30 lbs. (13.61 kg) Trinitrotoluene (TNT). Thus, further investigation is required for both RC wall and plant subjected to blast load especially on the appropriate and accurate meshing dependency in AUTODYN. Present work aims to study the blast pressure parameter of 30 lbs. (13.61 kg) Trinitrotoluene (TNT). The AUTODYN non-linear finite element (FE) analysis is commercial software used to develop a validated numerical according to the recorded blast pressure data from previous experiment. Numerical simulation for blast pressure analysis is conducted on four cases of different object barrier. The present numerical study involved cases at open space without any objects acting as barrier, only RC wall acting as barrier, only plant of general type acting as barrier and both plant and RC wall acting as barrier. These four cases are modeled in ANSYS-workbench and simulated in AUTODYN. The numerical results obtained are followed by a validated results reported by previous researches for validation. The present study established that, numerical case with only plant as barrier showed the highest blast pressure reduction by 9.8% and 6.7% compared to cases with RC wall and both RC wall and plant respectively. This might due to the plant that absorbs the blast pressure causing the blast pressure to be significantly reduced to 290 kPa whilst Case 2 and Case 4 reduced to only 490 kPa and 310 kPa respectively. Cases with RC wall present showed the lowest pressure reduction as the pressure reflects the wall surface when the wave hits. The reflection of the blast wave had caused the blast pressure to be magnified. Further investigation is recommended especially on meshing precision for both RC wall and plant as barrier when subjected to blast load.
610 2 0 _aFaculty of Civil Engineering and Earth Resources
_xDisertations
650 0 _aUniversities and colleges
_xDisertations
650 0 _aTheses
942 _2lcc
_cPSM