Abstract
Compressive strength is one of the main parameters in the analysis of concrete behavior. In general, the compressive strength of the concrete will be tested in the laboratory using the Uniaxial Compression Test tool. However, it requires a lot of energy and cost and a long time. For that we need an approach with a simulation of numerical methods that is with finite element method using ABAQUS aids program. Based on the results of numerical analysis, it is concluded that the modeling of concrete elements using ABAQUS element finite aids program can be done by creating 3D solid model, using C3D8R element type and discrete rigid plate as pressure load suppliers. Furthermore, plastic material input is used in the form of Concrete Damaged Plasticity (CDP). While the stress-strain distribution in concrete modeling using ABAQUS auxiliary program shows the distribution according to laboratory test result, especially the elasticity modulus seen from the relationship curve of stress-strain strain. However, there is a difference in the maximum compressive strength achieved between the two tests. Therefore, further analysis is needed to know the properties of the concrete material used in the analysis, and the damage behavior that will influence the input of the material being analyzed.
Highlights
Secara umum, kuat tekan beton akan diuji di sebuah laboratorium untuk menentukan validitas dari kuat tekan yang direncanakan
In general, the compressive strength of the concrete will be tested in the laboratory using the Uniaxial Compression Test tool
it requires a lot of energy and cost
Summary
Kuat tekan beton akan diuji di sebuah laboratorium untuk menentukan validitas dari kuat tekan yang direncanakan. Metode elemen hingga dapat digunakan untuk menyelesaikan berbagai permasalahan yang meliputi bentuk geometri, pembebanan yang sulit maupun material penyusun yang kompleks [1]. Pemilihan program ini didasari oleh kelebihannya yang dapat membuat geometry tegangan dan regangan yang terjadi pada material beton dengan lebih akurat, serta telah banyak digunakan oleh para engineer dari berbagai macam industri, seperti perusahanan pesawat terbang, automotif, perminyakan, mikroelektronik, dan juga laboratorium penelitian nasional pada berbagai universitas di dunia [2]. Hubungan Tegangan Regangan PBI 1971 melakukan percobaan kuat tekan benda uji beton pada umur 28 hari dengan berbagai macam mix design dan didapatkan hasil kurva tegangan-regangannya terdapat pada Gambar 1. Perilaku material beton dengan kuat tekan uniaksial dan kuat tarik konstitutif dibutuhkan untuk menentukan model CDP di program bantu ABAQUS.
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