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Akhbar, Muhammad
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Effect of Spring Back on Formation Process of Sheet Metal Bending Plates Purwantono, Purwantono; Erizon, Nelvi; Helmi, Nofri; Akhbar, Muhammad; Muhibuddin, Muhibuddin
Teknomekanik Vol. 3 No. 1 (2020): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (383.556 KB) | DOI: 10.24036/tm.v3i1.5872

Abstract

This study aims to observe the amount of deviation that occurs due to the influence of spring back on the forming process. spring back in question is the back force when the plate undergoes a forming process, but when the load is released, the plate condition will reverse or return to its initial condition. This reversal is due to the factor of the elasticity of the material that is owned. Other factors that influence the bending process include thickness, width, angle of bending and others. object of this research is a sheet metal plate with a thickness of 1 mm - 4 mm. Forming process is done by bending process. This bending process is widely used in the plate forming process, namely to bend the sides of the plate to make it stiffer. This bending process is carried out in cold conditions where the process is carried out at room temperature. This research was conducted by preparing slices of the same width and length and then the process of bending them to form an angle of 20 ° to 120 °. results of this test indicate that the thicker the bent material has the tendency to produce small deviations. This means that the value of the spring back ratio also decreases. The value of the spring back ratio in this study ranges from 1% to 9%. This means that if the bending process is carried out on a steel plate with the resulting bending angle of 90 °, the bending angle of the shoe must be more than 90 °, the excess is 1 ° - 9 °. So that when the load is released, the position of the susdut bends closer to 90 °.
Peran Penyuluhan PHBS dalam Membentuk Kebiasaan Cuci Tangan yang Benar pada Anak Usia Sekolah Djuari, Lilik; Hamda, Endanova Nur; Octavi, Ziba Naila; Mutiara, Alyssa Mutia; Fauziah, Najma; Rifqi, Muhammad Andika; Akhbar, Muhammad
Jurnal Pengabdian Masyarakat Bangsa Vol. 3 No. 7 (2025): September
Publisher : Amirul Bangun Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59837/jpmba.v3i7.3133

Abstract

Perilaku Hidup Bersih dan Sehat (PHBS) merupakan strategi penting dalam meningkatkan derajat kesehatan masyarakat, salah satunya melalui kebiasaan mencuci tangan yang benar. Anak usia sekolah menjadi sasaran utama karena berada pada fase pembentukan perilaku dan berisiko tinggi terhadap penyakit menular. Kegiatan ini bertujuan untuk mengetahui peran penyuluhan PHBS dalam meningkatkan pengetahuan dan membentuk kebiasaan mencuci tangan yang benar pada siswa sekolah dasar. Kegiatan penyuluhan dilaksanakan di SDS Kurnia Indah pada tanggal 7 Agustus 2025 dengan melibatkan 65 siswa kelas 5. Metode yang digunakan meliputi pre-test dan post-test, presentasi materi dengan media visual, serta demonstrasi praktik cuci tangan menggunakan media akrilik. Data dianalisis secara deskriptif dengan membandingkan nilai rata-rata pre-test dan post-test. Rata-rata nilai pre-test siswa sebesar 2,82 meningkat menjadi 4,38 pada post-test. Hasil ini menunjukkan adanya peningkatan pengetahuan setelah diberikan penyuluhan. Pendekatan edukasi yang interaktif dan disertai praktik langsung terbukti efektif dalam memperkuat pemahaman siswa mengenai pentingnya mencuci tangan dengan benar. Penyuluhan PHBS berperan penting dalam meningkatkan pengetahuan dan membentuk kebiasaan mencuci tangan yang benar pada anak usia sekolah. Dukungan guru, orang tua, serta sarana prasarana yang memadai di sekolah diperlukan agar kebiasaan sehat ini dapat berkelanjutan.
Co-Authors Erizon, Nelvi Fauziah, Najma Hamda, Endanova Nur Lilik Djuari Muhibuddin Muhibuddin, Muhibuddin Mutiara, Alyssa Mutia Nofri Helmi, Nofri Octavi, Ziba Naila Purwantono, Purwantono Rifqi, Muhammad Andika