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냉간성형 듀플렉스계 스테인리스강(STS329FLD) 용접접합부 모재 블록전단파단 거동
황보경(Hwang, BoKyung),김태수(Kim, TaeSoo) 대한건축학회 2019 大韓建築學會論文集 : 構造系 Vol.35 No.4
Recently, lean duplex stainless steel, STS329FLD with less nickel (reduced to 0.5~1.5%) has been developed as a substitute of austenitic stainless steel (8%~10.5% nickel in STS304) and included in Korean standards (KS). This paper investigates the block shear behavior of cold-formed duplex stainless steel (STS329FLD, nominal plate thickness of 1.5mm) fillet-welded connection with base metal fracture. Main variables are weld lengths in the longitudinal and the transverse directions of applied force ranged from 20mm to 50mm. As a result, specimens failed by typical block shear facture (the combination of gross section tensile fracture and shear fracture or shear yielding) and ultimate strength of the specimens got higher with the increase of weld length. Block shear fracture strengths predicted by current design specifications (KBC2016/AISC2016 and EC3) and existing proposed equations for welded connections by Topkaya, Oosterhof & Driver and Lee et al. were compared with test strengths. KBC2016/AISC2016 and EC3 design specifications underestimated block shear strength of STS329FLD welded connections by on average 24%, 29%, respectively and Oosterhof & Driver, Topkaya and Lee et al’s equations overestimated the ultimate strength of the welded connection by the range of 3% to 44%.
중년 성인의 죽음불안과 죽음수용의 관계: 의미추구·의미발견의 조절효과
황보경(Bokyung Hwang),심예린(Yerin Shim) 충남대학교 사회과학연구소 2022 사회과학연구 Vol.33 No.4
The present study aim to investigate the moderating effect of search for meaning and presence of meaning in the relationship between death anxiety and death acceptance among middle-aged adults based on Wong’s Meaning Management Theory (MMT). A total of 202 middle-aged South Korean adults participated in an online survey which included the Death Anxiety Scale, Death Attitude Profile, and Meaning in Life Questionnaire and demographic questionnaires. Data analysis was conducted using the SPSS 26.0 software and the PROCESS Macro 4.0, Model 1. The main results were as follows: First, death anxiety had a significant negative correlation with death acceptance. Next, the moderating effect of search for meaning in the relationship between death anxiety and death acceptance was significant. However, the moderating effect of presence of meaning between death anxiety and death acceptance was not significant. Based on these findings, practical suggestions and limitations of this study, and directions for future research, are discussed.
곽습 ( Guo Yi ),황보경 ( Hwang Bokyung ),김태수 ( Kim Taesoo ),유홍식 ( Ryu Hongsik ),김영주 ( Kim Yongju ) 한국구조물진단유지관리공학회 2023 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.27 No.1
이 연구는 반복하중을 받는 저항복강(HSA80) 강판전단벽에 대한 성능을 평가하기 위하여 유한요소해석을 통해 보통강 강판전단벽, 무보강 및 가새보강 골조와 구조거동을 비교하고, 내진성능을 평가하였다. 대상 골조의 실험체는 구조가 1경간 3층 골조이며, 강판전단벽 골조 실험체 3개와 모멘트저항골조 1개, 가새골조 1개로 총 5개로 계획하였다. 강판전단벽 골조에 대한 유한요소 해석모델은 볼트접합부와 같은 국부적인 상세를 제외하고 구축하였다. 해석결과, 저항복강 강판전단벽 골조는 가새골조보다 최대내력과 초기강성이 높은 것으로 나타났다